High-precision Power Quality Analyzer

High-precision power quality analyzer

The MOEORW-WNQ21 high-precision portable power quality analyzer integrates electrical parameter testing and power quality analysis, and is professionally adapted to power grid monitoring needs.

63rd harmonic/vector analysis, long battery life and large storage capacity, portable and easy to operate, multi-range adaptability, and data export capability.

Power field testing, laboratory metering, power grid operation and maintenance, industrial power quality assessment and equipment operation and maintenance troubleshooting

The MOEORW-WNQ21 portable power quality analyzer is a high-precision, multi-functional professional power grid testing device that integrates power quality analysis and electrical parameter testing. It is compact and lightweight (320mm×240mm×130mm, 2.0Kg), making it suitable for various scenarios including on-site testing and laboratory metrology.

The instrument can accurately measure electrical parameters such as voltage, current, power, and frequency, analyze power quality issues such as the 63rd harmonic, three-phase imbalance, and voltage/frequency deviation, and supports waveform display, vector analysis, flicker measurement, and load fluctuation monitoring. It can determine the correctness of metering wiring and provide quantitative evaluation of reactive power compensation devices. Equipped with a large-screen color LCD Chinese interface and conductive silicone buttons, it is easy to operate; it can operate continuously for over 10 hours on a full charge, automatically saving power after 3 minutes of inactivity; its built-in memory can continuously store data for 18 months at 1-minute intervals; it supports USB data export; optional WIFI/Bluetooth remote control; and can generate professional reports when used with management software.

In terms of hardware, it measures voltage from 10 to 800V (expandable to 1000V), adapts to various clamp-on transformers/flexible coils for current measurement, has high measurement accuracy (voltage ±0.2%, frequency ±0.01Hz, etc.), operates at temperatures from -10℃ to +40℃, has excellent insulation performance, and ensures safe and standardized wiring operations, providing comprehensive and reliable data analysis support for power operation and maintenance and grid quality assessment.

Input characteristics

Voltage measurement range: 10 ~ 800 V , automatic range switching . (Optional precision voltage divider box can extend to 1000V)

Current measurement range

Clamp-on current transformers (three types) : 5A / 25A (standard configuration)

100A / 500A (optional)

400A / 2000A ( optional )

1000A/5000A (optional) flexible coil

Phase angle measurement range: 0~359.99° .

Frequency measurement range: 45 ~ 65Hz .

_of voltage channels: Three channels ₍ UA , UB , UC ₎ .

Number of current channels : _Three channels ( IA _, IB , IC ₎ .

Maximum harmonic analysis order : 63rd .

Maximum continuous storage period with a 1- minute interval: 18 months.

2.Accuracy

Electrical parameter measurement section:

Voltage: ±0.2%

Frequency: ±0.01Hz

Current and power: ±0.5%

Phase: ± 0.2 °

Power quality section:

The allowable error for the fundamental voltage is ≤ 0.5 % FS.

Fundamental current tolerance : ≤ 1 % FS

Measurement error of the phase difference between the fundamental voltage and current: ≤ 0.2°

Harmonic voltage content measurement error: ≤ 0.1 %

Harmonic current content measurement error: ≤ 0.2 %

Three-phase voltage imbalance error: ≤ 0.2 %

Voltage deviation error: ≤ 0.2 %

Voltage variation error: ≤ 0.2 %

3.Operating temperature: -10 ℃ ~ +40 ℃

4.Charging power supply: AC220V , frequency 45Hz - 65Hz

5.Host power consumption: ≤ 3VA

6.Maximum battery operating time: ≤ 10 hours

7.insulation:

The insulation resistance between the voltage and current input terminals and the chassis is ≥ 100MΩ .

a 1.5KV (RMS) power frequency voltage between itself and the casing for 1 minute.

8.Dimensions: 320mm × 240mm × 130mm

9.Weight : 2.0 Kg

• The instrument is a high-precision testing instrument specifically designed for detecting power quality problems in power grids, such as waveform distortion, harmonic content, and three-phase imbalance; it also has the functions of electrical parameter testing and vector analysis.
• It can accurately measure various electrical parameters such as voltage, current, active power, reactive power, phase angle, power factor, and frequency.
• It can display vector diagrams of the measured voltage and current, allowing users to analyze the diagrams to determine whether the metering equipment is wired correctly.
• Current is measured using a clamp-on current transformer. Because clamp-on current transformers allow for convenient and safe measurement without disconnecting the current circuit, operators can perform measurements easily and safely. Clamp meters with different ranges can be selected based on the user's measurement range.
• It can measure and analyze the quality of AC power supplied from the public power grid to the user end, including frequency deviation, voltage deviation, permissible three-phase voltage unbalance, and grid harmonics.
• It can display single-phase voltage and current waveforms and can simultaneously display three-phase voltage and current waveforms.
• All test interfaces have a screen lock function to facilitate user reading and data analysis.
• It can measure short-time flicker P _st and long-time flicker P _lt .
• Load fluctuation monitoring: Measures and analyzes the fluctuations in power quality of the public power grid caused by various electrical devices under different operating conditions. It periodically records and stores the changing trends of electrical parameters such as voltage, current, active power, reactive power, apparent power, frequency, and phase.
• Record the active and reactive power consumed at the test points.
• Dynamic monitoring of power equipment adjustment and operation helps users solve problems that arise during the adjustment and commissioning of power equipment.
• It can test and analyze the dynamic parameters of reactive power compensation and filtering devices in power systems and make quantitative evaluations of their functions and technical indicators.
• Different storage intervals can be set to continuously store data at the set time intervals;
• It has a built-in large-capacity data storage device that can continuously store data for more than 18 months at 1-minute intervals, which can meet the needs of long-term monitoring test sites.
• The instrument has a USB interface, which makes it easy to copy data to the back-end management computer via USB flash drive.
• When used with powerful data management software, real-time sampling data can be directly uploaded to the back-end management computer for easier viewing.
• It features a perpetual calendar and clock function, displaying the date and time in real time. Test data and results can be saved during on-site testing and uploaded to a computer via USB flash drive. Data is managed through optional backend software, enabling computerized data management and providing powerful reporting capabilities.
• optional Wi -Fi ( Bluetooth ) module, the instrument can be remotely controlled using a tablet computer.
• It uses a large-screen imported color LCD as the display, with an English operating interface and English prompts, a multi-parameter display LCD screen, and a user-friendly human-machine interface.
• After 3 minutes of inactivity, the LCD screen automatically enters power-saving mode to maximize battery life.
• Conductive silicone buttons offer a good feel, long lifespan, reasonable design, and easy operation.
• It has a built-in high-capacity, high-performance lithium-ion rechargeable battery, which can work continuously for more than 10 hours on a full charge.
• Small in size and light in weight, it is easy to carry and can be used for on-site measurement or as a standard measuring device in the laboratory.